1 definition
by
Montana Mountain Man

Is a combination of the words mouse and schmuck. It is used to identify someone who acts like an ass because they have little mans syndrome. A schmaus usually drives a really big truck and wears really tight shirts. A schmaus will always embellish stories to make them self look bigger. A schmaus is small so he wants his life to look big.

Whoever is driving that big truck is either a schmaus, has a small penis, or both.